Disk-tool.



D. F. CURTIN.

DISK TOOL.

APPLICATION FILED AUG-H. I914- RENEWED NOV. 11,1915.

1 ]l[ @@,U%? Patented June 20, 1916.

A TTURNEYS lid till

DAVID 1E. CUR'IIN. OF CHICAGO, ILLINOIS.

DISK-TOOL.

Specification of Letters Patent.

Patented June 2th, 1916.

Application filed August 11, 1914, Serial No. 856,205. Renewed November11, 1915. Serial No. 60,995.

To all whom it may concern:

Be it known that I, DAVID F. CURTIN, a citizen of the United States, anda resident of Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Disk-Tools, of which thefollowing is a specification.

My invention is an improvement in disk tools, a ad has for its object toprovide a tool of,the character specified for creasing and foldingcircular blanks or disks of paper into the dishes forming thesubject-matter of my copending application, Serial No. 842,672, filedJune 3, 1914.

In the drawings: Figure 1 is a top plan view of the improved toolshowing the first step in the operation of creasing and folding theblank, Fig. 2 is a similar view showing the second step, Fig. 3 is anenlarged top plan view showing the third step, Fig. 4 is a section onthe line 44 of Fig. 3, Fig. 5 is a top plan view of a portion of thetool, and Fig. 6 is an edge view of Fig. 5.

The present embodiment of the invention comprises a pair of grippingjaws l and 1, of isosceles triangular form. The sides of the plates 1and 1 are at an angle of with respect to each other, and they areconnected at their base.

The plates or jaws 1 and 1 are in the form of plates arranged in spacedrelation and ap proximately parallel, and they are formed from a singlesheet cut to diamond shape. The diamond figure is then slottedtransversely at its center, and the plate is folded upon the slot. Thusthe jaws 1 and 1 are connected by integral portions 2 at each end of thebase, and the connections are resilient, so that the plates may be movedtoward and from each other, but will normally hold the position shown inFig. 6.

A handle comprising a grip 3 of wood or other suitable material, isconnected with the jaws, by means of a shank 4. The plate 4 is solderedor brazed to the outer face of one of the plates or jaws, the plate 1 inthe present instance, and a portion thereof extends beyond the base ofthe said plate and is reduced as indicated at 5, and is inserted in anopening in the grip or handle 3.

A ferrule 6 of metal is preferably arranged around the end of the gripor handle 3, adjacent to the gripping jaws for holdlng the parts inproper position. The altitude of the jaws is dependent upon the size ofthe dish to be formed.

The dishes referred to are formed from'a circular blank or disk 7, andto crease and fold a blank into shape, the blank is engaged by thegripping jaws as shown in Fig. 1, and the jaws are of such length thatwhen the periphery of the surface of the blank engages the integralconnections 2, the points of the plates or jaws will be at the center ofthe blank. With the jaws in this position either the blank or thegripping jaws is turned to fold that portion of the blank held betweenthe jaws over upon the body of the blank, and the fold between thatportion of the blank between the jaws and that ortion beneath both jawsmay be creased y pressing the plate or jaws together. This second stepis shown in Fig. 2. The body of the blank is now opened out, that is,the

blank is bent or folded over upon the upper-' most plate in such mannerthat that portion which is held between the jaws is creased at each sideedge, the folds being opposite. The tool is now withdrawn, and the blankis folded and creased in such manner that when the two folds are foldedupon each other as indicated in Fig. 4, a conical dish will be formed. Aconical dish is thus formed, having a flap and the dishes are intendedto be held in the holders, forming the subject-matter of my copendingapplications Serial No. 805,035, filed Dec. 6, 1913, and Serial No.842,671, filed June 3, 1914. It will be evident from the descriptionabove that the blanks may be folded rapidly by a single motion of thetool. With the blank gripped as shown in Fig. 1, it is only necessary toturn the tool once over and both folds and creases are made.

With the parts in the position of Fig. 1, as the tool is turned, thefingers of the left hand engage that portion which is beneath the toolin Fig. 2, while the thumb engages that portion which is above the toolin Fig. 3, The folding motion is completed by merely reversing the tool,and it may be withdrawn as soon as the fold is made. By arranging theconnection between the jaws at the ends of the base and leaving thatportion of the jaws disconnected between the said connections, theperiphery of the blank maypass through this open space as shown in Fig.3. a

I claim 1. A tool of the character specified, comprising a pair ofgripping jaws, said jaws being similar and being of isosceles triangularform and connected at each end of the base by a resilient connectionnormally holding the relation and spaced apart from each other, a gripor handle, and a shank connecting one jaw to the grip or handle, saidshank being secured to the outerface of one jaw and having a reducedportion engaging one end of the grip or-handle.

2. A tool of the character specified, comrising a pair of gripping jaws,said jaws ein similar and being of isoscelestriangular orm and connectedat each end of the base by a connection normally holding the jaws inapproximately parallel d jaws in approximately parallel relation andspaced apart from each other, a grip or hangrip or handle.

3. A tool of the character specified, comprising a pair of triangularjaws, a' connection between the jaws at each end of the base fornormally holdingthe jaws in approximately parallel and spaced relation,and a handle connected with one of the jaws.

v DAVID F. CURTIN.

, Witnesses:

ANNA M. KLEIN, IVA Hoovrm.

and a shank connecting one jaw to the

